Top similar games like Probation Protocol:

Red Light is a retro-styled extraction shooter where you take a mission to raid an abandoned Soviet R&D Institute filled with mercenaries and living results of human experiments to solve the mystery of your disappeared brother.

You, a lowly janitor, have been forced to go into the sewers to remove blockages that will cause a flood. But the inhabitants of this dark, slimy, stinking, writhing underworld do not like to be disturbed and will not let you leave alive.

Truth Seekers is a class-based horror multiplayer cooperative shooter game centered around hunting urban legends and folklore monsters. Find and craft items to aid in your attack, all while strategizing with others to learn the monsters' behaviors before they learn yours...

A brutally difficulty nightmare. A rogue detective infiltrates a cult compound to save a kidnapped woman and discovers a dark labyrinth of inhumane experiments and manmade flesh monsters. A tense and unnerving first person survival horror game, with limited resources, exploration and puzzle solving.

A psychological horror game where you explore a twisted realm of nightmares, confront grotesque monsters and piece together the mystery of the Hemobloom.

Use a rearview mirror to fight through a horror-filled hellscape in this Doom-inspired retro-fps. Shoot behind you, detect invisible enemies & never fall victim to enemy traps.Find new weapons, unlock abilities & warp to maps at any time!Objects In Mirror Are Closer Than They Appear!

You wake up alone in a decaying house, with no memory of how you got there. The front door is locked—and the only way out is through. Solve classic survival horror-style puzzles, fight off undead horrors, and survive long enough to escape... if you can.

A first person shooter that sets you far away, near death.

Eat weapons, be scared and question your own mind in this Survival-Horror FPS Prop Hunt Roguelike about meat. Walls are watching you!

You wake up as an army soldier in the middle of a mutant apocalypse, trying to figure out what the hell happened and blasting some heads on the way. Deadshot is a retro styled first person shooter inspired from classics like Half Life, Doom, Quake and many alike.

A Sci-fi FPS set on the mysterious planet ADACA. - Use your GRAVITY-MANIPULATING arm to HURL objects at your foes or even RIP weapons directly from their hands! - EXPLORE and manipulate the environment in this EERIE and HOSTILE world!

A new FPS survival horror experience

Close your eyes. Step into a world filled with nothing but darkness and terror, where everything wants to destroy you. Your time has come to fight the shrieking darkness, be brave and don't look back or you won't make it.

It is a misty evening in the year of our lord 1912. The Pattersons, a poor but proud aristocratic family of the British nobility, and some of their closest friends, arrive at the castle Malachi residence of a wealthy Romanian Count.

CARNAL is a fast and challenging retro FPS straight from the mid '90s. The Sons of Anak are opening portals to extract Dark Matter from the "other side". Combat the possessed soldiers, the manifested demons helping them, and any inanimate objects standing in your way!

Hunt down waves of vampiric freaks with friends or on your own in this brutal but fair horde roguelike fps. Explore, upgrade and find secrets to overcome the intensifying challenges thrown at you by a future that never was. Shoot, die, repeat.

Blast through a cursed nightmare solo or with up to 3 friends. A retro-inspired FPS where looter shooter weapons meets boomer shooter chaos and rogue-lite elements.

Death is only the beginning. Crawl from your grave and gear up to fight your way through the ranks of a mysterious and twisted cult. You, your guns, and your dynamite will have to shoot, slide, blast, duck, dodge, and maybe throw a gib or two to survive in this old-school-inspired shooter.

Cicadia is a free rogue-like first person shooter indie game. Kill bugs and collect Bile as you uncover the hidden truth of a self-forsaken empire. Challenge bosses, cull swarms, and build an unstoppable loadout in Cicadia!

Eternal is a first-person survival horror shooter where the player is trapped in a sinister mental asylum filled with terrifying entities. Your goal is to unravel the dark secrets of the asylum as you fight to escape this nightmarish place.

Navigate a distorted reality where the line between your world and a hellish mirror is bleeding away. In this PS1 style first person survival horror, you must fight, run, and manage resources to survive. Something is waiting for you in the confession booth. Will your sins be forgiven?

In 1944, you take on the role of Jason Miles. On behalf of the OSS, you are sent to a waterworks near the Schneiden in the heart of Germany, because according to reports, a Nazi scientist is researching how to resurrect fallen soldiers as ghosts.

Ready for a robot-battling adventure? Get your hands on Monster Shutdown Sequence and join the ultimate monster-fighting challenge. Experience classic 90s-inspired FPS arenas at your own pace, while mastering each map's danger and traps in order to survive the shutdown.

Beneath is a Lovecraft-inspired survival FPS. Scarce ammo, merciless enemies and a sense of the unknown combine in a 10+ hour, story-driven single player campaign, built for both veteran gamers and those seeking a challenging old school experience.

A Brutal, Action Horror FPS. Fight for your survival against a malevolent omen that has awoken. Will you stop this Evil... or fall victim like the rest?

You've been stranded by your company in a section of the facility known as "threshold sector". You'll have to find weapons, meds and equipment to survive and try to escape the complex. But be as careful as possible: everything down here wants you dead.

Deadzone: Rogue is a roguelite FPS set in space. Blast through swarms of hostile machines, combine powerful augments and elements to forge your build, and grow stronger with each run — solo or in co-op.

Fly a weaponized hot air balloon across a chain of dangerous islands overrun by failed experiments. Scavenge resources, upgrade your flying machine, and dismantle the defenses of an occult biotech corporation before its greatest creation breaks free.

Horror Action FPS. Landlord reluctantly removes the Vampire infestation from his apartment block.

Casual & Hard FPS. Be careful with jam.

You are infected by the virus and slowly dying. SURVIVE AS LONG AS POSSIBLE !!

A blood-fueled roguelite FPS inspired by Doom and Vampire Survivors — but instead of one arena, fight through cursed labyrinths that reshape every run. Draft brutal perks, wield occult firepower, and survive escalating horrors with a retro shooter soul.